Shreya Chaturvedi
Designer and creator.
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Patents and Publications

IEEE SPCOM 2022

Robustness of DAS Beamformer Over MVDR for Replay Attack Detection On Voice Assistants

Investigates the use of Delay-and-Sum (DAS) beamforming and Teager Energy Operator (TEO)-based features for replay spoof speech detection in virtual assistants, demonstrating improved performance over Minimum Variance Distortionless Response (MVDR) beamforming and other feature sets.
IEEE SPCOM 2022

Noisy Student Teacher Training with Self Supervised Learning for Children ASR

Proposes an improved Automatic Speech Recognition (ASR) system for children’s speech using wav2vec 2.0 and Noisy Student Teacher learning, achieving a 10% relative improvement in Word Error Rate compared to the baseline.